10 False Nutrition Facts Everyone Knows

In the last few years, the number of gluten-free products available has exploded. But nutritionists don’t think they have any value for people who aren’t gluten-intolerant. Wendy Maeda/The Boston Globe via Getty Image

Know someone eating gluten-free? This diet, intended for those with celiac disease and gluten intolerance, is becomingly increasingly widespread -- even for those who don't necessarily need it. But,

there's little evidence to support the idea that going gluten-free is better for the general population.

People with celiac disease are unable to digest gluten, a protein found in wheat, rye and barley. If they eat gluten, over time it damages the small intestine and makes it difficult to absorb nutrients. Gluten intolerance is marked by fatigue and abdominal distress. Switching to a gluten-free diet can bring a metamorphosis; suddenly, people with celiac disease or gluten intolerance feel better and have more energy. But unless you have the same condition, making the switch won't give you the same results [source: Hendley].